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J/ApJS/125/409      Arcsecond positions of UGC galaxies     (Cotton+, 1999)
Arcsecond Positions of UGC Galaxies
       Cotton W.D., Condon J.J.
      <Astrophys. J. Suppl. Ser. 125, 409 (1999)>
      =1999ApJS..125..409C      (SIMBAD/NED BibCode)
ADC_Keywords: Positional data; Galaxy catalogs

Keywords: astrometry - catalogs - galaxies: general


Abstract:
    We present accurate B1950 and J2000 positions for all confirmed
    galaxies in the Uppsala General Catalog (UGC, Cat. VII/26). The
    positions were measured visually from Digitized Sky Survey images with
    rms uncertainties σ≤[(1.2")2+(θ/100)2]1/2, where is
    the major-axis diameter. We compared each galaxy measured with the
    original UGC description to ensure high reliability. The full position
    list is available in the electronic version only. the major-axis
    diameter. We compared each galaxy measured with the original UGC
    description to ensure high reliability. The full position list is
    available in the electronic version only.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        90    13390   Optical Positions of UGC Galaxies


See also:
    VII/26 : Uppsala General Catalogue of Galaxies (UGC) (Nilson 1973)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units     Label     Explanations

   1-  3  A3    ---       ---       [UGC]
   5-  9  I5    ---       UGC       UGC name
  10- 11  A2    ---       m_UGC     Multiplicity number for UGC
  17- 18  I2    h         RAh       Right ascension (J2000)
  20- 21  I2    min       RAm       Right ascension (J2000)
  23- 27  F5.2  s         RAs       Right ascension (J2000)
  29- 32  F4.2  s         e_RAs     rms uncertainty on RA
      34  A1    ---       DE-       Declination sign (J2000)
  35- 36  I2    deg       DEd       Declination (J2000)
  38- 39  I2    arcmin    DEm       Declination (J2000)
  41- 44  F4.1  arcsec    DEs       Declination (J2000)
  46- 49  F4.1  arcsec    e_DEs     rms uncertainty on DE
  51- 52  I2    h         RA1h      Right ascension (B1950)
  54- 55  I2    min       RA1m      Right ascension (B1950)
  57- 61  F5.2  s         RA1s      Right ascension (B1950)
  63- 66  F4.2  s         e_RA1s    rms uncertainty on RA B1950
      75  A1    ---       DE1-      Declination sign (B1950)
  76- 77  I2    deg       DE1d      Declination (B1950)
  79- 80  I2    arcmin    DE1m      Declination (B1950)
  82- 85  F4.1  arcsec    DE1s      Declination (B1950)
  87- 90  F4.1  arcsec    e_DE1s    rms uncertainty on DE B1950


Table 2: Rejected UGC Entries
--------------------------------------------------------------------------------
  UGC Name      Comments
--------------------------------------------------------------------------------
  UGC 01992     Not visible on DSS. Does not exist?
  UGC 03327     Not a galaxy (Michel & Huchra, 1988PASP..100.1423M) 
  UGC 03492     Same galaxy as UGC 03491?
  UGC 03583     Star cluster (Michel & Huchra, 1988PASP..100.1423M) 
  UGC 04663     Not a galaxy (Schombert & Bothun, 1988AJ.....95.1389S)
  UGC 05071     Plate defect (Nilson, 1973, Cat. VII/26)                     
  UGC 05196     Plate defect (Nilson 1973, 1973, Cat. VII/26)
  UGC 09792     Globular cluster Palomar 5 (NED)
  UGC 10642     Globular cluster Palomar 15 (NED)
  UGC 10676     Plate defect (NED)
  UGC 12371     Duplicate name for UGC 12367

History:
    From ApJ electronic edition
(End)                            Greg Schwarz (AAS)                  24-Jan-2000